Holder for a mixer



FIG. 1 is a front isometric view of a holder for a mixer according my new invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a holder for a mixer, as shown and described. 